# Java SquareRoot Factorial Pi and Decimal Conversion program Programming

**Tutor description**

1. Create a class called Project8 and implement the following methods:

a. (factorial) write a method that calculates and return n!

b. (computing Π(pi)) You can approximate Π by using the following series:

Π = 4(1 – 1/3 + 1/5 – 1/7 + 1/9 – 1/11 + …. + 1/2n-1 – 1/2n+1)

Write a method called pi, that given n, calculates and return value of Π

c. (Approximating the square root) Implement the sqrt method. The square root of a number, num, can be approximated be repeatedly performing a calculation using the following formula:

nextGuess = (lastGuess + (num / lastGuess)) / 2

2. Write a main method to the following:

a. Calculates and prints value of Π for n=10000

b. Calculate and print square root of 16

c. Convert 125 to binary, octal, and hexadecimal

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